Two sharks were swimming nearby when a sailor fell overboard. The younger shark said "Yeah -- fresh food! Let's go eat him!". The older shark said "Wait, watch how I do it and do the same thing". The older shark started swimming circles around the MOB, first showing half the dorsal fin, then the whole dorsal fin. Then after circling for a while, started eating. The younger shark joined in.
When they were finished eating, the younger one said that was the best human he ever had. "By the way," he asked: "Why did you circle him first? The older one replied: "They taste better when you scare the shit out of them before you eat".